A group of Microsoft Products and technologies used for sharing and managing content, knowledge, and applications.
Hi Alex,
Thank you for your message in this forum.
According to your description, it seems that you encountered an error message “No Data Source Provided” of PowerApps Form via SharePoint site.
If my understanding is right, since our category focus on SharePoint Online built-in features, the issue you encountered is related to PowerApps, to make sure you get professional help, we’d suggest you go to PowerApps community to post a new thread, which is the specific channel to handle related questions.
At the same time, according to the error code you provided, we have searched a lot and we found the similar thread, for your reference:
EditForm: No data source selected
Your understanding and patience will be highly appreciated.
Best Regards,
Sukie